Determination of Optimum Conditions for Preparation of Three-Component Magnetic Nanoparticles With Response Surface Methodology (RSM) for Removal of Dyes from Aqueous Solutions

This paper deals with the optimal condition for synthesis of three-component Magnetic nanoparticles (MNPs) of iron, copper and manganese using co-precipitation method. The response surface methodology (RSM) with Central composite design (CCD) was used to investigate the optimal condition to syntheses the magnetic nanoparticles. The structures of MNPs were characterized by infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscope (SEM) techniques. The influences of reaction temperature (60-85 °C) and stirring rate (500-1500 rpm) during the precipitation were considered. The appropriate conditions for the synthesis of these particles found to be 60 °C and 1500 rpm. In this condition a nanoparticle of 43 nm dimensions was obtained. The nanoparticles prepared in optimal conditions, can be used for removal of 16 violet basic dye from aqueous solutions.